The Characteristics of Acoustic Emission Signal under Composite Destruction on GFRP Gas Cylinder
作者： Hyun-Sup Jee , Jong-O Lee , No-Hoe Ju , Cheal Ho So , Jong-Kyu Lee
DOI: 10.7779/JKSNT.2013.33.5.430
关键词: Materials science 、 Glass fiber 、 Gas cylinder 、 Composite material 、 Acoustic emission 、 Breakage 、 Signal 、 Cylinder 、 Fibre-reinforced plastic 、 Amplitude
摘要: This study is investigation of the characteristics for acoustic emission signal generated by destruction on glass fiber bundles and specimen that was machined composite materials surrounding outside GFRP cylinder. The Amplitude gets bigger as cutting angle knife increases. Accordingly, number hits in have more longitudinal direction (longitudinal to fiber) than hoop (horizontal while amplitude signals were direction. It found out breakage 40 dB matrix crack less because not observed when threshold value suddenly appered 32 dB. slope related source horizontal vertical directions are 0.16 0.08. In particular, appear similar therefore Acoustic estimated breakage.
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